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2112122563 = 13164125153
BaseRepresentation
bin111110111100100…
…0110111011000011
312110012022221110121
41331321012323003
513311200410223
6545330041111
7103224513505
oct17571067303
95405287417
102112122563
11994268a41
124ab419197
13278773885
14160723d75
15c565e15d
hex7de46ec3

2112122563 has 8 divisors (see below), whose sum is σ = 2131650576. Its totient is φ = 2092646400.

The previous prime is 2112122549. The next prime is 2112122599. The reversal of 2112122563 is 3652212112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-2112122563 is a prime.

It is a super-2 number, since 2×21121225632 = 8922123442267377938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112122513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71395 + ... + 96547.

It is an arithmetic number, because the mean of its divisors is an integer number (266456322).

Almost surely, 22112122563 is an apocalyptic number.

2112122563 is a deficient number, since it is larger than the sum of its proper divisors (19528013).

2112122563 is a wasteful number, since it uses less digits than its factorization.

2112122563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25925.

The product of its digits is 1440, while the sum is 25.

The square root of 2112122563 is about 45957.8346204431. The cubic root of 2112122563 is about 1283.0385500176.

Adding to 2112122563 its reverse (3652212112), we get a palindrome (5764334675).

The spelling of 2112122563 in words is "two billion, one hundred twelve million, one hundred twenty-two thousand, five hundred sixty-three".

Divisors: 1 131 641 25153 83971 3295043 16123073 2112122563